body{
    background: url(../img/index.png);
}
#box{
    width: 350px;
    height: 300px;
    .box{
        border-radius: 50px;
        background: #235376;
        border: 1px solid #4A7D9B;
        color: #FFFFFF;
        height: 40px;
        padding-left: 15px;
        margin-bottom: 15px;
        font-size: 14px;
        font-family: "微软雅黑";
        float: left;
    }
    #username,#password{
        width: 100%;
        .box
    }
    #code{
        width: 50%;
        .box
    }
    .codeImg{
        display: inline-block;
        margin-left: 15px;
        width: 120px;
        height: 30px;   
    }
    .submit{
        border-radius: 45px;
        height: 40px;
        font-family: arial;
        font-size: 16px;
    }
    .lock-box{
        color: #4A7D9B;
        font-size: 22px;
        position: absolute;
    }
    .lock{
        right: 15px;
        top: 66px;
        .lock-box
    }
    .user{
        right: 15px;
        top: 10px;
        .lock-box
    }
}
